You may have:If you have angina, take your nitroglycerin as instructed by your doctor. You can buy GTN medicines from a pharmacy without a prescription if you need to.Sunil Kochhar is a community pharmacist in the South East of England with more than 20 years’ experience. This might mean you take it as soon as you feel symptoms, or you wait a minute before you take it, or you take more than one pill over several minutes.If you take your nitroglycerin as instructed and you still have chest pain, get medical help right away.As with any medicine, nitroglycerin might be harmful if you donât take it correctly.Men with heart disease and other long-term health problems are more likely to have erectile dysfunction (ED) or trouble with erections. This can be taken when you get an episode of angina. See the FDA's Safe Disposal of Medicines website (It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. Other drugs may interact with Zetia, including prescription and over-the-counter medicines, vitamins, and herbal products. Zetia will not be as effective in lowering your cholesterol if you do not follow a cholesterol-lowering diet plan.Some cholesterol medications can cause a condition that results in the breakdown of skeletal muscle tissue, leading to kidney failure. You will need frequent blood tests to measure your cholesterol levels.Zetia is only part of a complete program of treatment that also includes diet, exercise, and weight control. Take the medicine at the same time each day.Zetia may be taken at the same time with fenofibrate, or with a statin medication such as atorvastatin, lovastatin, simvastatin, pravastatin, or fluvastatin.If you also take cholestyramine, colestipol, or colesevelam: Wait at least 4 hours after taking any of these medicines before you take ezetimibe. Get the latest information about what the Covid-19 coronavirus means for you if you have a heart or circulatory condition. It is usually taken as a spray, but is also available as a tablet. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location â one that is up and away and out of their sight and reach. Call your doctor right away if you have unexplained muscle pain, tenderness, or weakness especially if you also have fever, unusual tiredness, and dark colored urine.You should not use Zetia if you are allergic to ezetimibe, or if you have:You should not use ezetimibe with a "statin" cholesterol medicine (Zocor, Lipitor, Crestor, and others) if:To make sure Zetia is safe for you, tell your doctor if you have:Before you start taking Zetia, tell your doctor if you already take a statin cholesterol medicine.Some cholesterol medications can cause a condition that results in the breakdown of skeletal muscle tissue, leading to kidney failure. Call your doctor for medical advice about side effects. Children—Use and dose must be determined by your doctor. A GTN spray has an expiry time of up to three years, whereas GTN tablets expire eight weeks after opening. If you find you’re using your spray more frequently, discuss this with your GP or pharmacist, as there may be an underlying issue, and you may benefit from taking a long-acting nitrate medication.Finally, make sure you check the expiry dates of your medicines, as out-of-date medicines are not effective. If your symptoms do not go away completely after you use the first dose, your doctor may tell you to use a second dose after 5 minutes have passed and a third dose 5 minutes after the second dose. Store it at room temperature and away from excess heat and moisture (not in the bathroom).Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. There's no limit to the number of occasions you can take GTN. This product may catch fire, so do not use near an open flame, and do not allow the container to be burned after use.This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.Unless your doctor tells you otherwise, continue your normal diet.Nitroglycerin spray is usually used as needed to treat episodes of angina; do not use it on a regularly scheduled basis.Nitroglycerin may cause other side effects. We fund research to keep hearts beating and blood flowing. People can also take fast-acting nitroglycerin formulations 5 to 10 minutes before doing an activity that may cause an angina attack.